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When and ignited
When the ascent stage ignited, small explosive charges severed the ascent stage from the descent stage and cables connecting the two were severed by a guillotine-like mechanism.
When, in 882, Engelschalk II rebelled against the Margrave of Pannonia, Aribo, and ignited the so-called Wilhelminer War, Arnulf supported him and even accepted his and his brother's homage.
When the weapons were removed from the mound, this movement disturbed the bowl beneath them where the butt ends of the staffs were, which in turn ignited the fuses.
When Flaherty returned to Toronto with 70, 000 feet of film, the nitrate film stock was ignited in a fire started from his cigarette, in his editing room.
When tobacco is burned, oils from adjoining not yet ignited particles vaporize and condense into the existing cake on the walls of the bowl and shank.
When ignited, preheated thermite can burn almost instantaneously, releasing light and heat energy at a much higher rate than normal and causing burns and eye damage at what would normally be a reasonably safe distance.
When the apex of the vertical flight occurred after a coasting flight of about 247 seconds, a radio signal from the ground ignited the eleven-rocket cluster of the second stage, separating the tub from the instrument section.
When the friction bar is sharply pulled out, by means of a lanyard, the composition is ignited and sets fire to the powder in the long tube ; the flash is conveyed through the vent and ignites the gun charge.
When the second stage was ignited telemetry showed abnormal burning and the stage failed due to a malfunction in the oxidizer system.
When ignited with a flame rather than detonated with a primary explosive, C4 just burns, so American soldiers during the Vietnam War era would sometimes use small amounts of it as a fuel for heating rations.
When the MDF was ignited, the resulting gas pressure between the inner and outer seal would cause the bolts to fail in tension.
When the trigger was pulled, the spring pushed the firing pin forwards into the bomb, which ignited the propellant in the bomb and launched it out of the trough and into the air.
When the Sun ignited in the solar nebula, hydrogen, helium and other volatile materials were evaporated in the area near the Sun.
When the flame reaches the topmost pyrotechnic star, the star is ignited.
When the details of the camp emerged in the South African media, it ignited a firestorm of protest that quickly consumed much of the upper administrative levels of South African rugby.
When the two NSDs are ignited at each hold down, the hold-down bolt travels downward because of the release of tension in the bolt ( pretensioned before launch ), NSD gas pressure and gravity.
When the fuel is ignited from the bottom, hot gases are expelled downwards, propelling the rocket upwards.
When the treads of the escalator flashed over, the fire grew dramatically and ignited most of the ticket hall.
When it ignited, the resulting explosion set fire to the surrounding buildings.
When first shown in exhibition, those photos ignited a lively debate that has been revived with a recent exhibition of Danuser ’ s photographs of Zumthor ’ s most famous work, the spa at Therme Vals.
When the motor ignited, the pressure inside the casing built up until the damaged casing could not hold in the pressure of the burning fuel and exploded, destroying the launch vehicle.
When ignited, it rotates quickly, producing a display of sparks and coloured flame.
When the bombs were ignited, the valley became an inferno.

When and mixture
When the mixture cools, the dysprosium can be cut away from the impurities.
When a binary mixture is evaporated and the other component, e. g. a salt, has zero partial pressure for practical purposes, the process is simpler and is called evaporation in engineering.
A Power stroke: When the piston reaches a point just before top dead center, the spark plug ignites the fuel mixture.
When the piston moves further down and the cylinder doesn't have anymore gases, fuel mixture starts to flow to the combustion chamber and the second process of fuel compression starts.
Operation: When the piston moves from bottom dead center ( BDC ) to top dead center ( TDC ) the fresh air and fuel mixture enters the crank chamber through the intake port.
When steels with less than 0. 8 % carbon, known as a hypoeutectoid steel, are cooled from an austenitic phase the mixture attempts to revert to the ferrite phase, resulting in an excess of carbon.
When the PBXN-112 detonates, the aluminium mixture is dispersed and rapidly burns.
When construction was finished the porous sandstone walls were coated with a mixture of lime, rice glue, casein, and lead, giving the house its familiar color and name.
When that mixture has dried, the metal stylus is used on the plate and thereby removes some of the grit particles, so that minuscule areas of copper are exposed to the acid and etched ; they will eventually hold the ink for the printing process.
When the insulator is a mixture of different dielectric materials ( e. g., polyethylene foam is a mixture of polyethylene and air ), then the term effective dielectric constant is often used.
When some strong acid is added to an equilibrium mixture of the weak acid and its conjugate base, the equilibrium is shifted to the left, in accordance with Le Chatelier's principle.
When the engine is cold, fuel vaporizes less readily and tends to condense on the walls of the intake manifold, starving the cylinders of fuel and making the engine difficult to start ; thus, a richer mixture ( more fuel to air ) is required to start and run the engine until it warms up.
When these two substances mix, a spontaneous reaction will begin, slowly increasing the temperature of the mixture until flames are produced.
When the hydrazine and water mixture is released and passes across a catalyst of iridium, it spontaneously ignites, creating hot expanding gases which drive the turbine.
When used as a noun, it can mean " a varied mixture.
When a protein mixture is heated to 100 ° C in presence of SDS, the detergent wraps around the polypeptide backbone.
When the intake ports open, the fuel air mixture can be made to enter tangentially to the cylinder.
When mice were injected with a mixture of heat-killed S and live R, however, pneumonia and death ensued.
When adding together a mixture of positive and negative numbers, one can think of the negative numbers as positive quantities being subtracted.
When Romulus and his men kidnapped the Sabine women, Janus caused a volcanic hot spring to erupt, resulting in the would-be attackers being buried alive in the deathly hot, brutal water and ash mixture of the rushing hot volcanic springs that killed, burned, or disfigured many of Tatius's men.
When chlorine is added to water, it reacts to form a pH dependent equilibrium mixture of chlorine, hypochlorous acid and hydrochloric acid:
When preparing homemade glögg using spices, the hot mixture is allowed to infuse for at least an hour, often longer, and then reheated before serving.
When science fiction integrates film noir elements, Bin Aziz calls the resulting hybrid form " future noir ," a form which "... encapsulates a postmodern encounter with generic persistence, creating a mixture of irony, pessimism, prediction, extrapolation, bleakness and nostalgia.
* When extinguishing a campfire, use plenty of water, then stir the mixture and add more water.

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